00375nam a2200133Ia 4500008004100000082001600041100001700057245004500074260005200119300000800171650002300179650001800202653002100220170901s1911    xx            000 0 und d  a581.1bD86P  aDuggar, D.M. 0aPlant PhysiologybRural Text Book Series  aNew YorkbThe Macmillan Company, New Yorkc1911  a516  aBotanical sciences  aPure Sciences  aPlant physiology